18 CATALOGUE OF THE 



*Strophomena rhomboidalis, var. gibbosa, James. 

 *Strophomena squamula, James. 

 *iStrophomena tenuistriata, Sowerby. 



Strophomena tenuilineata, Conrad. 

 *Strophomena ulrichi, James. 



Trematis crassipuncta, Ulrich.§ 



Trematis dyeri, S. A. Miller. 



Trematis magna, Ulrich.§ 

 / *Trematis millepunctata, Hall. 

 *Trematis punctostriata, Hall. 



Trematis quineuncialis, Miller & Dyer. 



Trematospira granulifera, Nicholson. 

 *Trematospira quadriplicata, S. A. Miller. 



Trematospira (?) similis, Ulrich.§ 

 i/ *Zygospira cincinnatiensis, James. 



Zygospira concentriea, Ulrich. 

 *Zygospira headi, Billings. 

 K ^Zygospira modesta, Say. 



*Zygospira modesta, var. kentuckyensis, James. 



]>d:OLLUSC^. 



Class GASTEROPODA. 



^ *Bellerophon bilobatus, Sowerby. 



Bellerophon capax, Ulrich. § 



Bellerophon mohri, S. A. Miller. 



Bellerophon morrowensis, Miller & Dyer. 



Bucania costata, James. 



Bucania expansa. Hall. 



Carinaropsis patelliformis, Hall. 

 */ *Cyclonema bilix. Hall. 

 • — ' Cyclonema conicum, S. A. Miller. 

 , »Cyclonema fluctuatum, James. 



